===================================
This is the first Infernalis release candidate. There have been some
-major changes since hammer, and the upgrade process is non-trivial.
+major changes since Hammer, and the upgrade process is non-trivial.
Please read carefully.
Getting the release candidate
-------------------------
- *General*:
+
* Ceph daemons are now managed via systemd (with the exception of
Ubuntu Trusty, which still uses upstart).
* Ceph daemons run as 'ceph' user instead root.
* On Red Hat distros, there is also an SELinux policy.
+
- *RADOS*:
+
* The RADOS cache tier can now proxy write operations to the base
tier, allowing writes to be handled without forcing migration of
an object into the cache.
(ceph-objectstore-tool).
* The internal ObjectStore API has been significantly cleaned up in order
to faciliate new storage backends like NewStore.
+
- *RGW*:
+
* The Swift API now supports object expiration.
* There are many Swift API compatibility improvements.
+
- *RBD*:
+
* The ``rbd du`` command shows actual usage (quickly, when
object-map is enabled).
* The object-map feature has seen many stability improvements.
(e.g., ``--size 64G``).
* There is a new ``rbd status`` command that, for now, shows who has
the image open/mapped.
+
- *CephFS*:
+
* You can now rename snapshots.
* There have been ongoing improvements around administration, diagnostics,
and the check and repair tools.